Half-Life: Opposing Force

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Release Date: 31 October 1999

Genres: Action

Tags: Action, Sci-fi, Singleplayer, Classic, Shooter, First-Person, Aliens, Adventure, 1990's, Atmospheric, Military, Story Rich, Silent Protagonist, Co-op, Great Soundtrack, Puzzle, Gore, Moddable, Free to Play

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Recent	Overall	Positive	Negative
91/100	94/100	62 | 4403	6 | 241